Power hammering apparatus.



H. K. A. KARLSEN.

POWER HAMMERING APPARATUS.

APPLICATION FILED JULY 6, 191.5.

1 1% 1 ,Q l 5 Patented Apr. 25, 1916.5

2 SHEETS-SHEET l.

Suva x 501 THE COLUMBIA PLANOGRAPH 60., WASHINGTON, n. C,

H. K. A. KARLSEN. POWER HAMMERING APPARATUS.

APPLICATION FILED IULYG, 1915.

1,]. 1 ,U l 5 Patented Apr. 25, 1916.

2 SHEETS-SHEET 2.

HANS K. A. KABLSEN, OF OMAHA, NEBRASKA, ASSIGNOR OF ONE-HALF TO ANDREW J. ANDERSEN, 0F UTE, IOWA.

POWER HAMMERING APPARATUS.

Application filed July 6, 1915.

To all whom it may concern:

Be it known that I, HANs K. A. KARLSEN, a citizen of Denmark, residing at Omaha, in the county of Douglas, and State of Nebraska, have invented certain new and useful Improvements in Power Hammering Apparatus, of which the following is a specification.

The apparatus of the present invention 1s designed as an improvement in power or die-hammering machines, and the particular feature of such improvement relates to adjusting means for the hammer actuating member such that the stroke, and consequently the blow of the hammer, is regulat ed according to the efiect desired or the character of work operated upon.

A further object in View is to provide movable guide means for the hammer mem her for the purpose of obtaining a reversal of the hammer member to bring into play a different style of peen; such movement of the guide means being advantageous in facilitating the change or replacement of the anvil or die elements, and the interposition of the work in place for operation thereupon.

These and such other objects as may hereinafter appear are attained by the novel construction, combination, and arrangement of parts to be hereinafter specifically described and claimed.

Reference will now be had to the accompanying drawings forming a part of this specification, wherein:

Figure 1 is a side elevation of a device constructed in accordance with my invention. Fig. 2 is a top plan View thereof, parts being broken away and shown in section to disclose the clutch elements more clearly. Fig. 3 is an elevation of the opposite side of the apparatus to that disclosed by Fig. 1, parts being broken away and in section, and the hammer member "being shown in its reversed position for cooperation with a dif ferent anvil. Fig. 4 is a vertical sectional view taken about on the plane indicated by the line H of Fig. 3, looking in the direction of the arrows. Fig. 5 is a detail view of the fulcrum block and adjusting means therefor. Fig. 6 is a fragmentary sectional view taken about on the line 66 of Fig. 1 looking in the direction of the arrows; and Fig. 7 is a vertical sectional view on the line 7-7 of Fig. 1, showing more clearly the Specification of Letters Patent.

Patented Apr. 25, 1916.

Serial No. 38,191.

support adjacent its upper extremity is formed a dovetailed guide groove 3 adapted to slidably receive a fulcrum block 4 shown most clearly in Fig. 5 of the drawing. The said block is formed with a dovetailed plate 5, at one side, which is seated in the groove 3 before mentioned and said block on its upper end is also formed with transverse bearing 6 to receive the trunnions 7 of a carrying plate 8 to which is fixed a flexible hammer actuating member or spring 9. Bearing plates 10 are fixed to the block 4 over the trunnions aforesaid to hold the actuating member in position upon the block 4:. The rear end of the spring has connected thereto a vertically disposed connecting rod 11 secured at its lower end to an eccentric strap 12 mounted upon an eccentric disk 13 which is adapted to impart vertical reciprocatory movement to said connecting rod. The eccentric shaft 14 carries at one end a loose pulley 15 adapted to be driven by a belt 16 and from a suitable source of power, and secured to the shaft is a clutch member comprising the sleeve 17 and the clutch drum 18 coacting with the pulley 15 which constitutes the cooperating clutch member. To the sleeve 17 is operatively connected the spring actuated treadle 19 which passes around the hammer machine and is pivoted at opposite sides of the support 1 asindicated at 20. Located in advance of the support 1 is a base 21 at the top of which is removably disposed the anvil 22. With this anvil the hammer member 23 is adapted to coact, said hammer being of any well known type and configuration, having formed thereon a lateral projection or stud 2-4 which is loosely secured in the slotted extremity 9' of the hammer actuating spring 9. The hammer 23, it will be understood, is, therefore, loosely connected to said spring and is held in proper cooperating position with respect to the anvil 22 by means of the guiding sleeve 25. This sleeve is cylindrical in shape and formed with a lateral projection 26 rotatably received in the outer extremity of the support arm 2. The hammer 23 is loosely held in said sleeve by means of the spaced plates 27 secured by bolts 28 to one face of the sleeve so as to hold the hammer in vertical position for reciprocation in said sleeve. It will, furthermore, be apparent that the hammer is preferably constructed with different types of peens at opposite extremities for operating upon different characters of articles.

One of the main features of this apparatus is incidental to the disposition of the sleeve 25 on the arm 2 so that said sleeve is capable of being rotated to reverse the hammer, as shown in Fig. 2 for bringing into position the peen at the opposite end, which peen is adapted to coact with a flat shaped anvil 22 replacing the type shown in Fig. 1. To enable suchreversal action, a lever or handle 29 is pivotally mounted upon the lateral projection 6, as shown in Figs. 1, 2 and 3, at 29, said handle normally lying at right angles. to said projection and contiguous to the side of the arm 2, which arm is provided with a locking member 30 with which the handle is adapted to be interlocked for holding the hammer in its normal vertical position. To obtain the reversal, the handle 29 is disengaged from'the member 30 by lateral movement thereof whereupon the head or guide 25 is rotated in the arm 2 until the opposite extremity or peen of said hammer is brought into position whereupon the handle is again engaged with the locking member 30. It willbe obvious to those skilled in the art to which this invention refers that this serves also a further advantageous functionin that it facilitates the removal of the work or disposition of said work upon the anvil beneath the hammer irrespective of the position at which the actuating member 9 for said hammer may be holding the latter. Furthermore, by reason of the slotting of the extremity of the actuating member 9 even during reciprocation of the hammer, it is capable of being rotated out of its path of normal movement with respect to the anvil, eliminating also likelihood of injury to the operator in adjusting the work in proper position.

Another important feature of this apparatus is the provision of adjusting means for the fulcrum of the hammer actuating member 9 so that the distanceor throw of this member may readily be controlled and necessarily the blow with which it operates upon the object worked upon. To accomplish this adjustment the block 4, as will be observed in Figs. 4 and 5, is formed with a recess 31 in the plate side 5 thereof and in said recess is seated a, disk or cam 32 eccentrically carat ried by a shaft 33 extending through the up per portion of the support 1 and carrying at its outer extremity an adjusting or operating lever 34. At this side of the standard 1 is provided a notched segment 35 with which the lever 34 cooperates to hold the fulcrum block 4 at adjusted positions. Movement of the handle 34 obviously will cause the disk or cam 32 to raise or lower the fulcrum block and consequently increase or decrease the distance of the hammer 23 from the anvil 22. By reason of the resiliency of the actuating member 9, the vibrations imparted thereto by the driving meansll will cause a greater or less effect with respect to the blows imparted by the hammer upon the work according to the distance which the hammerhas to move in its reciprocation in the guide means therefor.

It is needless to mention the advantages inherent to a machine which is capable of being adjusted during the operation thereof since it will readily be appreciated that much time is saved in carrying out the operations Where the driving mechanism does not have to be stopped and yet permit effect of the operating elements to be regulated according to the character of work which is to be performed or the effect it is to have upon said work.

Having thus described my invention, what I claim as new is:

1. In a device of the class described, the combination of a support, a hammer, an actuating member fulcrumed on said support and to which the hammer is connected, means for regulating the throw of the hammer comprising a fulcrum block to which the actuating member is pivotally connected, guide means for said block, and rotatable means interlocked with said block to raise or lower the same on the support.

2. In a device of the class described, the combination of a support, a hammer, an actuating member fulcrumed on said support and to which the hammer is connected, and means for regulating the throw of the hammer comprising a fulcrum block slidably mounted on the support for movement in a vertical plane and pivotally carrying the actuating member, the support being recessed to receive the block and guide its sliding movements, a revoluble cam cooperating with the block, and means operable during the actuation of the hammer for rotating the cam to raise or lower the block on the support.

3. In a device of the class described, the combination of a support, a hammer, an actuating member fulcrumed on said support and to which the hammer is connected, and means for regulating the throw of the hammer comprising a fulcrum block to which the actuating member is pivotally connected, the support having a lateral groove in which theblock-is movable, said block also having a recess therein, rotatable means seated in the recess of said block to raise or lower the same on the support, and means at the opposite side of the support for positively holding the rotatable means and the block at adjusted. positions.

4:. In a device of the class described, the combination of a support, a hammer, an actuating member fulcrumed on said support and to which the hammer is connected, and means for regulating the throw of the hammer comprising a fulcrum block disposed at one side of the support and to which the actuating member is pivotally connected, means movably connecting the block to the support, an eccentric cam on which said block is mounted, manual means at the other side of the support for adjusting the cam to raise or lower the block, a shaft connecting the manual means and the cam aforesaid, and means engageable with the said shaft to hold the block at adjusted positions.

5. In a device of the class described, the combination of a support, a hammer, an actuating member fulcrumed on said support and to which the hammer is connected, and means for regulating the throw of the hammer comprising a fulcrum block to which the actuating member is pivotally connected, means connecting the block to the support, an eccentric cam on which said block is mounted, a lever for rotating the cam to raise and lower the block, and locking means engageable with the lever for holding it at adjusted positions.

6. In a device of the class described, the combination of a support, an actuating member mounted thereupon, a hammer device connected to the actuating member and having a plurality of peens, and revoluble guide means connecting said hammer to the support whereby the hammer may be reversed to bring the respective peens into operative position.

7. In a device of the class described, the

combination with a support, an actuating member fulcrumed thereon, means for operating the actuating member, a hammer connected to the latter, and revoluble means reciprocatingly connecting the hammer to the support.

8. In a device of the class described, the combination with a support, an actuating member fulcrumed thereon, means for operating the actuating member, a hammer connected to the latter, revoluble means reciprocatingly connecting the hammer to the support, and means for rotating said revoluble means to displace the hammer from its normal plane of movement.

9. In a device of the class described, the combination with a support, an actuating member fulcrumed thereon, means for operating the actuating member, a hammer connected to the latter, a guide sleeve for said hammer revolubly carried by the support, and a lever for rotating the sleeve and hammer.

10. In a device of the class described, the combination with a support, an actuating member fulcrumed thereon, means for oper ating the actuating member, a hammer pivotally connected to the actuating mem' her, and means on the support for holding the hammer in reciprocatory position.

11. In a device of the class described, the combination with a support, an actuating member fulcrumed thereon, means for operating the actuating member, a hammer to which the actuating member is loosely connected, a guide sleeve carried by said support and cooperating with the hammer to hold the same in position for reciprocation, a lever fixed to said sleeve, and means on said support coacting with the lever for holding the hammer in its normal reciprocating position.

In testimony whereof I afiix my signature.

HANS Ii. A. KARLSEN.

flopies of. this patent may be obtained for five cents each, by addressing the Commissioner oi Patents, Washington, D. C. 

